Time.h

/*
** libutil++
** $Id: Time.h 1653 2016-02-28 19:54:59Z sella $
** Copyright (c) 2011-2016 Digital Genesis, LLC. All Rights Reserved.
** Released under the LGPL Version 2.1 License.
** http://www.digitalgenesis.com
*/

#ifndef __libutilxx__sella__util__Time_H__
#define __libutilxx__sella__util__Time_H__

#include "../../common.h"

#include <stdint.h>
#include <sys/time.h>
#include <stddef.h>

#include <string>
#include <chrono>

namespace sella {
        namespace util {
                class Time;
        }
}

class sella::util::Time {
        public:
                static struct timeval htontv(const struct timeval &src) throw ();
                static struct timeval ntohtv(const struct timeval &src) throw ();
                static void cleartv(struct timeval &src) throw ();
                static int comparetv(const struct timeval &a, const struct timeval &b) throw ();
                static struct timeval& copytv(struct timeval &dst, const struct timeval &src) throw ();
                static struct timeval& subtracttv(struct timeval &dst, const struct timeval &src) throw ();
                static struct timeval& addtv(struct timeval &dst, const struct timeval &src) throw ();

                static struct timespec htonts(const struct timespec &ts) throw (); /* Host to Network */
                static struct timespec ntohts(const struct timespec &ts) throw (); /* Network to Host */

                static void clearts(struct timespec &ts) throw ();
                static int comparets(const struct timespec &a, const struct timespec &b) throw ();
                static struct timespec& copyts(struct timespec &dst, const struct timespec &src) throw ();
                static struct timespec& subtractts(struct timespec &dst, const struct timespec &src) throw ();
                static struct timespec& addts(struct timespec &dst, const struct timespec &src) throw ();

                static struct timespec clock_realtime() throw (); /* Affected by NTP and clock adjustments. */
                static struct timespec clock_realtime_coarse() throw (); /* Faster but less percise. */
                static struct timespec clock_monotonic() throw (); /* Not affected by NTP or clock adjustments. */
                static struct timespec clock_monotonic_coarse() throw (); /* Faster but less percise. */
                static struct timespec clock_monotonic_raw() throw ();
                static struct timespec clock_boottime() throw ();
                static struct timespec clock_process_cputime_id() throw ();
                static struct timespec clock_thread_cputime_id() throw ();
                static uint64_t tstousec(const struct timespec &ts) throw ();
                static uint64_t tstomsec(const struct timespec &ts) throw ();
                static uint64_t tstosec(const struct timespec &ts) throw ();
                static struct timespec sectots(uint64_t sec) throw ();
                static struct timespec msectots(uint64_t msec) throw ();
                static struct timespec usectots(uint64_t usec) throw ();

                static std::string tmtostr(const struct tm &tm, const char* format = "%a %Y-%m-%d %H:%M:%S %Z") throw ();
                static std::string tstostr(const struct timespec &ts, const char* format = "%a %Y-%m-%d %H:%M:%S %Z") throw ();
                static std::string sectostr(uint64_t sec = 0, const char* format = "%a %Y-%m-%d %H:%M:%S %Z") throw ();
                static std::string usectostr(uint64_t usec = 0, const char* format = "%a %Y-%m-%d %H:%M:%S %Z") throw ();
                static std::string msectostr(uint64_t msec = 0, const char* format = "%a %Y-%m-%d %H:%M:%S %Z") throw ();

                static struct timeval gettimeofday(struct timezone *tz = NULL) throw ();
                static uint64_t gettimeofday_usec(struct timezone *tz = NULL) throw ();
                static uint64_t gettimeofday_msec(struct timezone *tz = NULL) throw ();
                static uint64_t gettimeofday_sec(struct timezone *tz = NULL) throw ();
                static uint64_t tvtousec(const struct timeval &tv) throw ();
                static uint64_t tvtomsec(const struct timeval &tv) throw ();
                static uint64_t tvtosec(const struct timeval &tv) throw ();
                static struct timeval chronototv(const std::chrono::system_clock::duration &duration) throw ();
                static struct timeval chronototv(const std::chrono::system_clock::time_point &tp) throw ();
                static struct timeval sectotv(uint64_t sec) throw ();
                static struct timeval usectotv(uint64_t usec) throw ();
                static struct timeval msectotv(uint64_t msec) throw ();
                static struct timeval* add_usectotv(struct timeval &tv, const uint64_t usec) throw ();
                static struct timeval* add_msectotv(struct timeval &tv, const uint64_t msec) throw ();
                static struct timeval* add_sectotv(struct timeval &tv, const uint64_t sec) throw ();

                static std::string getRFC1123Date(void) throw ();
};

#endif

/*
** vim: noet ts=3 sw=3
*/